reactos/base/services/schedsvc/schedsvc.c

   1 /*
   2  *  ReactOS Services
   3  *  Copyright (C) 2015 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License along
  16  *  with this program; if not, write to the Free Software Foundation, Inc.,
  17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19 /*
  20  * COPYRIGHT:        See COPYING in the top level directory
  21  * PROJECT:          ReactOS Services
  22  * FILE:             base/services/schedsvc/schedsvc.c
  23  * PURPOSE:          Scheduling service
  24  * PROGRAMMER:       Eric Kohl
  25  */
  26
  27 /* INCLUDES *****************************************************************/
  28
  29 #include "precomp.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(schedsvc);
  32
  33 /* GLOBALS ******************************************************************/
  34
  35 static WCHAR ServiceName[] = L"Schedule";
  36
  37 static SERVICE_STATUS_HANDLE ServiceStatusHandle;
  38 static SERVICE_STATUS ServiceStatus;
  39
  40 /* FUNCTIONS *****************************************************************/
  41
  42 static VOID
  43 UpdateServiceStatus(DWORD dwState)
  44 {
  45     ServiceStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
  46     ServiceStatus.dwCurrentState = dwState;
  47     ServiceStatus.dwControlsAccepted = 0;
  48     ServiceStatus.dwWin32ExitCode = 0;
  49     ServiceStatus.dwServiceSpecificExitCode = 0;
  50     ServiceStatus.dwCheckPoint = 0;
  51
  52     if (dwState == SERVICE_START_PENDING ||
  53         dwState == SERVICE_STOP_PENDING ||
  54         dwState == SERVICE_PAUSE_PENDING ||
  55         dwState == SERVICE_CONTINUE_PENDING)
  56         ServiceStatus.dwWaitHint = 10000;
  57     else
  58         ServiceStatus.dwWaitHint = 0;
  59
  60     SetServiceStatus(ServiceStatusHandle,
  61                      &ServiceStatus);
  62 }
  63
  64
  65 static DWORD WINAPI
  66 ServiceControlHandler(DWORD dwControl,
  67                       DWORD dwEventType,
  68                       LPVOID lpEventData,
  69                       LPVOID lpContext)
  70 {
  71     TRACE("ServiceControlHandler() called\n");
  72
  73     switch (dwControl)
  74     {
  75         case SERVICE_CONTROL_STOP:
  76             TRACE("  SERVICE_CONTROL_STOP received\n");
  77             UpdateServiceStatus(SERVICE_STOP_PENDING);
  78             /* Stop listening to incoming RPC messages */
  79             RpcMgmtStopServerListening(NULL);
  80             UpdateServiceStatus(SERVICE_STOPPED);
  81             return ERROR_SUCCESS;
  82
  83         case SERVICE_CONTROL_PAUSE:
  84             TRACE("  SERVICE_CONTROL_PAUSE received\n");
  85             UpdateServiceStatus(SERVICE_PAUSED);
  86             return ERROR_SUCCESS;
  87
  88         case SERVICE_CONTROL_CONTINUE:
  89             TRACE("  SERVICE_CONTROL_CONTINUE received\n");
  90             UpdateServiceStatus(SERVICE_RUNNING);
  91             return ERROR_SUCCESS;
  92
  93         case SERVICE_CONTROL_INTERROGATE:
  94             TRACE("  SERVICE_CONTROL_INTERROGATE received\n");
  95             SetServiceStatus(ServiceStatusHandle,
  96                              &ServiceStatus);
  97             return ERROR_SUCCESS;
  98
  99         case SERVICE_CONTROL_SHUTDOWN:
 100             TRACE("  SERVICE_CONTROL_SHUTDOWN received\n");
 101             UpdateServiceStatus(SERVICE_STOP_PENDING);
 102             UpdateServiceStatus(SERVICE_STOPPED);
 103             return ERROR_SUCCESS;
 104
 105         default :
 106             TRACE("  Control %lu received\n", dwControl);
 107             return ERROR_CALL_NOT_IMPLEMENTED;
 108     }
 109 }
 110
 111
 112 static
 113 DWORD
 114 ServiceInit(VOID)
 115 {
 116     HANDLE hThread;
 117
 118     /* Initialize the job list */
 119     InitializeListHead(&JobListHead);
 120
 121     /* Initialize the job list lock */
 122     RtlInitializeResource(&JobListLock);
 123
 124     hThread = CreateThread(NULL,
 125                            0,
 126                            (LPTHREAD_START_ROUTINE)RpcThreadRoutine,
 127                            NULL,
 128                            0,
 129                            NULL);
 130     if (!hThread)
 131     {
 132         ERR("Can't create PortThread\n");
 133         return GetLastError();
 134     }
 135
 136     CloseHandle(hThread);
 137
 138     return ERROR_SUCCESS;
 139 }
 140
 141
 142 VOID WINAPI
 143 SchedServiceMain(DWORD argc, LPTSTR *argv)
 144 {
 145     DWORD dwError;
 146
 147     UNREFERENCED_PARAMETER(argc);
 148     UNREFERENCED_PARAMETER(argv);
 149
 150     TRACE("SchedServiceMain() called\n");
 151
 152     ServiceStatusHandle = RegisterServiceCtrlHandlerExW(ServiceName,
 153                                                         ServiceControlHandler,
 154                                                         NULL);
 155     if (!ServiceStatusHandle)
 156     {
 157         ERR("RegisterServiceCtrlHandlerExW() failed! (Error %lu)\n", GetLastError());
 158         return;
 159     }
 160
 161     UpdateServiceStatus(SERVICE_START_PENDING);
 162
 163     dwError = ServiceInit();
 164     if (dwError != ERROR_SUCCESS)
 165     {
 166         ERR("Service stopped (dwError: %lu\n", dwError);
 167         UpdateServiceStatus(SERVICE_STOPPED);
 168         return;
 169     }
 170
 171     UpdateServiceStatus(SERVICE_RUNNING);
 172 }
 173
 174
 175 BOOL WINAPI
 176 DllMain(HINSTANCE hinstDLL,
 177         DWORD fdwReason,
 178         LPVOID lpvReserved)
 179 {
 180     switch (fdwReason)
 181     {
 182         case DLL_PROCESS_ATTACH:
 183             DisableThreadLibraryCalls(hinstDLL);
 184             break;
 185
 186         case DLL_PROCESS_DETACH:
 187             break;
 188     }
 189
 190     return TRUE;
 191 }